A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
At first you should look where your Quick Notes in OneNote 2016 are stored. If you had older versions of OneNote 20xx installed before it is possible that Quick Notes are stored locally, on your computer. The OneNote app then cannot see them.
You can find out (and change) this place in Options:
You should have a (second) Quick Notes section on OneDrive which is used as default by all other OneNote versions. If you have local Quick Notes and want to store them on OneDrive in the future then empty your local Quick Notes and then change the pointer shown above to OneDrive.
For Quick Notes with the OneNote app there is no simple shortcut, but you can create a desktop shortcut with this command line
onenote-cmd://quicknote/?onOpen=typing
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